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CERT Coordination Center

Microsoft SQL Server vulnerable to buffer overflow

Vulnerability Note VU#584868

Original Release Date: 2003-07-24 | Last Revised: 2003-07-24


Microsoft SQL Server contains a buffer overflow vulnerability. A local attacker could leverage this vulnerability to gain elevated privileges and/or execute arbitrary code.


Quoting from Microsoft Security Bulletin MS03-031:

A flaw exists in a specific Windows function that may allow an authenticated user with direct access to log on to the system running SQL Server the ability create a specially crafted packet that, when sent to the listening local procedure call (LPC) port of the system, could cause a buffer overrun. If successfully exploited, this could allow a user with limited permissions on the system to elevate their permissions to the level of the SQL Server service account, or cause arbitrary code to run.


This vulnerability may allow a remote attacker to gain privileges equivalent to the SQL Server Service account, or execute arbitrary code with the privileges of the SQL Server Service. Quoting from Microsoft Security Bulletin MS03-031:

Code running with service account permissions could provide an attacker with the ability to take full control over the database and the data contained within it.


Apply a patch as described in Microsoft Security Bulletin MS03-031.

Vendor Information

Affected   Unknown   Unaffected

Microsoft Corporation

Updated:  July 24, 2003



Vendor Statement

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A



This vulnerability was discovered by Andreas Junstream of @Stake. The CERT/CC thanks Microsoft for providing Microsoft Security Bulletin MS03-031, upon which the majority of this document is based.

This document was written by Ian A Finlay.

Other Information

CVE IDs: CVE-2003-0232
Severity Metric: 36.00
Date Public: 2003-07-23
Date First Published: 2003-07-24
Date Last Updated: 2003-07-24 18:04 UTC
Document Revision: 11

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